Foldable attachment



FIG. 1 is a top perspective view showing my new design for a foldable attachment,

FIG. 2 is a bottom perspective view thereof,

FIG. 3 is a front view thereof,

FIG. 4 is a rear view thereof,

FIG. 5 is a right side view thereof; and,

FIG. 6 is a left side view thereof. 

CLAIM The ornamental design for a foldable attachment, as shown and described. 